Four people have been arrested.
The 58-year-old was struck by a Seat Leon between the junctions of Muntz Street and Charles Road at around 11pm yesterday.
The victim remains in hospital in a critical condition today.
Det Sgt Paul Hughes, from the Serious Collision Investigation Unit, said: “Our investigation is making good progress and we’ve already spoken to several witnesses, but I’d urge anyone with dash cam, helmet cam, or CCTV footage, to get in touch.
Get in touch via 101 or Live Chat quoting log 5374.